jest assert if empty array
expect(expected).toEqual([])Jest toContain
# 1. Use '.toContain' when you want to check that an item is in an array.
# 2 '.toContain' can also check whether a string is a substring of another string.
test('the flavor list contains lime', () => {
expect(['lime', 'mangle']).toContain('lime');
});
test('the flavor list contains lime', () => {
expect("lime juice").toContain('lime');
});Copyright © 2021 Codeinu
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